June 15, 2011
Kasasin a ne bo yɛ den sen biara wɔ dade nhama ho nsɛmmisa mu ne "yehia dade nhama tɔn biako". Enkosi sɛ wɔbɛhyehyɛ aspect ratio, tensile strength ne dosage no, wontumi mfa quotation biara ntoto ho.
Nsɛmmisa ba da biara a ɛkenkan sɛ: yɛsrɛ sɛ fa dade nhama ka, yehia tɔn biako. Ɛte sɛ nea ɛyɛ pɔtee na ɛrentumi nyɛ yiye sɛ wɔbɛbɔ ne bo, efisɛ dade nhama nyɛ ade na mmom ɛyɛ nneɛma abusua bi. Micro waya a wɔde kɔbere adura ho a ne kɛse yɛ mm 0.2 ne waya a wɔde ahama ayɛ a ne kɛse yɛ mm a awɔw wom no betumi ayɛ soronko mprɛnsa wɔ ne bo mu na ɛkame ayɛ sɛ ɛka bom wɔ dwumadie mu. Fa abien no nyinaa to asɛmfua biako akyi na adwumayɛbea no betumi asusuw ho nkutoo, na ɛka a wɔbɔ wɔ asusuwde ho no yɛ nsase wɔ beae hɔ sen sɛ wɔde bɛhyɛ nsɛm a wɔafa aka no so. Asɛmmisa bi a ɛyɛ adwuma nka sɛ China a ɛde dade nhama ma; ɛka sɛ mfiridwuma fam, 150 mm slab, sesa welded mesh, 25 kg/m3, ASTM A820 amanneɛbɔ hwehwɛ. Nea ɔto so abien no nya mmuae da koro no ara.
Aspect ratio yɛ tenten a wɔakyekyɛ mu denam diameter a ɛyɛ pɛ so. Ɛsi gyinae sɛ ebia nhama no betumi akura matrix no mu: ɛba fam dodo na ɛkame ayɛ sɛ ɛtwe fi adi a ɛkame ayɛ sɛ ɛnyɛ friction, ɛkorɔn dodo na ɛbɔ bere a ɛrefrafra no. Structural steel fiber taa tra 40 ne 80. Tensile ahoɔden ne nɔma a ɛto so abien: awɔw-twetwe low-carbon wire tu mmirika 800 kosi 1150 MPa bere a kɔbere-plated micro waya du 2850 MPa. Eyinom nyɛ papa na eye, ɛyɛ nnwuma ahorow, nea edi kan no ma mass structures, nea ɛto so abien no ma UHPC ne afasu a ɛyɛ tratraa. Dosage yɛ nea ɛto so abiɛsa, a wɔde ma sɛ volume fraction anaa kilograms wɔ cubic mita biara mu. 30 kosi 80 kg/m3 kata adansi kɔnkrit so; 90 kosi 268 kg/m3 yɛ UHPC asasesin dedaw.
Mpɛn pii no, nneɛma pɔtee bi piapia afã horow no kɔ soro te sɛ nea dodow no nkutoo kyerɛ adwumayɛ. Nea ɛne eyi bɔ abira no yɛ nokware: dodow a ratio no kɔ soro no, dodow no ara na nhama no twetwe afrafrade no, na bere a atwam a matrix ne aggregate no betumi agye no yɛ bɔɔl. Bɔɔl yɛ sintɔ, ɛnyɛ nea ɛhyɛ mu den. Adesua ma pumping ne spraying ba fam 60, precast ne self-compacting mixes wɔ 65 kosi 70, na biribiara a ɛboro 80 nkutoo wɔ ultra-high performance matrices a aggregate no yɛ fɛ na paste no yɛ viscous a ɛbɛma fibers atetew. Bisa sɛnea wɔde kɔnkrit no besi ansa na woabisa aspect ratio.
Nwini-twetwe a carbon-carbon wire fiber a 800 kosi 1150 MPa ba wɔ 0.55, 0.75 ne 1.0 mm diameters, 30 kosi 60 mm tenten, 30 kosi 60 mm tenten, hooked wɔ n’awiei abien no nyinaa. Ɛyɛ sikasɛm mu mfasoɔ, ɛkɔ so daa na ɛne no hyia wɔ baabiara, ɛfiri kɔnkrit a ɛnyɛ den so kɔsi RPC so. Micro wire a wɔde kɔbere adura ho a ne kɛse yɛ 2850 MPa no kɛse yɛ mm 0.2 pɛ a ne tenten yɛ mm 6 kosi 20 na ne nsusuwii yɛ 30 kosi 100; ɛyɛ UHPC bridge decks, tratraa precast afã horow ne precision elements dea. Micro waya a wɔde bedi dwuma wɔ fam a nnipa pii wom no sɛe sika, na waya a ɛyɛ mmerɛw kɛkɛ rentumi nhyɛ ɔfasu a ne kɛse yɛ mm 30. Asɛmmisa a edi kan a ɛfa paw ho ne ɔfã no mu duru ne nea ɛkata so pefee, na ɛnyɛ ahoɔden.
Dosage ne dodow a wɔtaa gyaw no pefee wɔ asɛm bi a wɔafa aka so. Structural concrete de 30 kosi 80 kg/m3 di dwuma, bɛyɛ 0.4% kosi 1.0% wɔ ne kɛse mu; wɔkamfo kyerɛ sɛ micro wire a wɔde kɔbere adura ho wɔ UHPC mu no yɛ 90 kosi 268 kg/m3, a ɛboro mmɔho abiɛsa. Enti fiber tɔn biako kata fam kɔnkrit cubic mita 25 kosi 30 nanso UHPC cubic mita 4 kosi 10 pɛ. Gyae dodow a wɔde ma no na adwumayɛbea no ka sɛnea wɔayɛ no ho asɛm, ɛte sɛ nea unit bo no sua, na ɛka a wɔbɔ wɔ kɔnkrit cubic mita biara ho no yɛ mmɔho abien komm.
Asɛmmisa a wonya mmuaeɛ da koro no ara taa wɔ nkyerɛwdeɛ nsia: dwumadie (fam, shotcrete, precast, refractory), ɔfa no mu duru ne katasoɔ a ɛda adi pefee, tensile ne flexural toughness values a wɔakyerɛ, dosage anaa volume fraction, gyinapɛn a ɛsɛ sɛ wɔdi ho dwuma (ASTM A820 anaa EN 14889-1), ne packaging ne destination port. Fa nkyerɛwde biako ka ho sɛ ebia CE mpaemuka ho hia na adwumayɛbea no nim sɛ ebia ɛsɛ sɛ wɔyɛ batch a wɔagye atom anaa. Sɛ wɔde saa nkyerɛwde asia no di dwuma a, nsɛm a wɔafa aka no hyia fi mpɛn abiɛsa a ɛtrɛw kɔ ɔha biara mu du mu, efisɛ awiei koraa no obiara rekenkan krataa koro. Kyerɛw akwammisa krataa no wɔ adetɔfo no ankasa nsɛm mu nso: dade nhama a wɔde hyɛ kɔnkrit den, ma mfiridwuma fam, ma tunnel shotcrete anaasɛ ma refractory linings. Fiber abusua biako betumi asom saa nneɛma no pii, nanso nsɛm a wɔafa aka no sesa bere a wɔde nsɛmfua no di dwuma no, na saa ara na sɔhwɛ amanneɛbɔ a adwumayɛbea no de bata ho no nso sesa.
Nkonimdie a ɛwɔ spec sheet mu no ntaa nyɛ nɔma a ɛnteɛ, ɛyɛ misaligned units. Chinafo krataa bi ka sɛ dodow a wɔde ma no yɛ kilogram 25/m3; adetɔfo a ɔka Borɔfo kasa dannan ne ho wɔ 1.685 na ɔkenkan 42 lb/yd3, afei ɔde nɔma biako 42 bua, na adwumayɛbea no fa 42 kg/m3 ka akyi. Bo no kɔ soro komm ɔha biara mu nkyem 68. Ahoɔden a ɛtwetwe ade no kura afiri koro no ara: ade a ɛda MPa ne ksi ntam no yɛ 6.895, enti 1150 MPa yɛ bɛyɛ 167 ksi, na decimal biako a wɔmfa nsi hɔ yiye no bɛyɛ mfomso mmɔho du. Aspect ratio hwɛ sɛ ahobammɔ sen biara na ɛda so ara wɔ nkyerɛase ho haw, efisɛ denominator no betumi ayɛ diameter a ɛyɛ pɛ anaasɛ nominal diameter; wɔ waya a wɔde hama abɔ mu fam no, ɛkame ayɛ sɛ ɛho nhia, wɔ waya a wɔde ahyɛ mu ne nea wɔawosow mu fam no, ɛma dodow no kɔ soro ɔha biara mu nkyem 15. Nsiesiei a ɛyɛ den ne sɛ wobɛtintim unit system mmienu no nyinaa wɔ krataa no so na woaka nsakraeɛ nneɛma wɔ header no mu. Net weight ne akyinnyegye a ɛto so abien a ɛsan ba bio: sɛ ebia carton a emu duru yɛ kilogram 25 yɛ gross anaasɛ net sesa ade a ɛyɛ ma kilogram 400. Nea ɛto so abiɛsa ne adwene a ɛyɛ basaa a ɛda dodow ne nea ɛwɔ mu ntam, baabi a dodow yɛ kilogram a wɔde ka ho wɔ kɔnkrit cubic mita biara mu na emu no yɛ dodow kyɛfa a ɛwɔ ade a wɔawie no mu, akontaabu abien a dade a ɛyɛ den na ɛtetew mu. Siesie saa nhyiam ahorow yi wɔ email a edi kan no mu na akyiri yi mfiridwuma mu ntease biara yera.
Ntrɛwmu mprɛnsa wɔ din mu nkyerɛkyerɛmu koro no ara so no ntaa nyɛ nsisi. Mpɛn pii no, ɛyɛ nsonsonoe abiɛsa a wɔanka ho asɛm. Raw material: awɔw-twetwe low-carbon wire versus re-melted scrap ma soronko nhyehyɛe a ahoɔden consistency. Nea wɔde kata so: kɔbere a wɔde hyɛ mu a ɛyɛ hyew ankasa ne electroplating a wɔde yɛ ahosiesie no yɛ soronko mprɛnsa kosi awotwe wɔ nkyene a wɔde petepete so mu. Nhwehwɛmu: 28 in-line checks versus shipment sampling yɛ nsonsonoe ankasa wɔ ɛka mu. Kyerɛw abiɛsa no nyinaa kɔ nsɛmmisa no mu, bisa batch amanneɛbɔ a ɛne nea wɔde amena no, na sɛnea wɔtrɛw mu no bɛyɛ nea wotumi kyerɛkyerɛ mu. Sɛ wode botaeɛ ankasa bɛtoto ho a, yɛ adwuma firi model ne measured data tables a ɛwɔ steel fiber product page no so sene sɛ wobɛfa email so adi aguadi ho nkyerɛkyerɛmu.
Ka wo project scenario ne ahwehwɛdeɛ kyerɛ yɛn, na yɛbɛma ano aduru a ɛfata no ahyia na yɛde quote ama wɔ nnɔnhwereɛ 24 ntam.
Nya Quote a Wɔde Ma KwaKɔbere-plated microwire, awɔw twetwe hook awiei type, glued wɔ row, fam type, 304 / 310S / 446 stainless dade ne melt-twe ɔhyew-resistant fiber, UHPC soronko synthetic fiber, diameter 0.2 kosi 1.0 mm, tenten 6 kosi 60 mm, tensile ahoɔden 700 kosi 2850 MPa, emu nsɛm coverage 0.5% kɔsi 2% volume rate ne 30 kɔsi 268 kg/m3. Wobetumi ayɛ nhyehyɛe a wɔbɛyɛ no sɛnea ASTM A820 anaa EN 14889-1 kyerɛ na wobetumi de batch inspection amanneɛbɔ ama. Wɔboa nneɛma a wɔde kyekyere nneɛma ahorow abiɛsa: nnaka, ton bag ne bulk. Aguadi ho nsɛm yɛ nea wobetumi apaw EXW / FOB / CIF / DDP.
Sua dade nhama a wɔpaw ne nsɛm a wɔafa aka ho ade →